Effect of [Al]s, [Mg], [Ca] in Molten Steel on Inclusion Content for High Speed Wheel Steel during LF-VD Process

Yu Tang

doi:10.4028/www.scientific.net/AMR.898.60

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 898Effect of [Al]s, [Mg], [Ca] in Molten Steel on...

Effect of [Al]_s, [Mg], [Ca] in Molten Steel on Inclusion Content for High Speed Wheel Steel during LF-VD Process

Abstract:

In order to improve fatigue life of wheel steel, LF-VD secondary-refining process is done with Al-deoxidation and slag of high basicity, high Al₂O₃ content and low oxidizing property. Inclusion content would be influenced by [Al]_s, [Mg], [Ca] in molten steel. It is found that Al₂O₃inclusions, which are the products of Al-deoxidation, would react with [Mg], [Ca] in molten steel to transform into CaO-MgO-Al₂O₃ complex inclusions, which is the key for the enhancement of fatigue performance for wheel steel.

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Periodical:

Advanced Materials Research (Volume 898)

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60-63

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.898.60

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Online since:

February 2014

Authors:

Yu Tang*

Keywords:

[Al]_s, [Ca] Content, [Mg], Inclusion, Slag, Wheel Steel

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